Synchronous generators are devices that produce electricity by converting mechanical energy into electrical energy. They work in sync with a power grid, providing a stable and consistent flow of electrical power.
Full definition
In my opinion, just about any technology that does not provide polyphase AC from a
rotating synchronous generator (conventional technology) will cause some problems of some type, if you get too much of it.
A forthcoming NERC report will detail how a system in which
large synchronous generators are no longer providing «essential reliability services» like ramping capability, voltage follow through, and frequency response can be reliably maintained.
Let's start by describing
a synchronous generator.